Electric safety razor blade



Oct. 30 1934;

M. P. MCCARTY ELECTRIC SAFETY RAZOR BLADE Filed Dec. 21, 1932 ATTORNEY15 ,objects, an

40 Figured-isavlew Patented 3o, i934 6 YUNITED-STATEQSQ PATENT OFFICEMadison r. McCarty, Dallas, Tex. V

- Application December :1, i932, Serial No. 648,169

This invention relates to razors and shaving implements and especiallyto'the electrical or magnetically operated razor, and the invention hasparticular reference to an improved type of 5 blade adapted for use ineonnectionwith certain types of such razors as specified. The inventionhas'for its principal object to provide,

and novel article of manufacture, an electric safety razor bladehavingmeans in the body thereof for the reception of an, o illatingelement by which positive longitudinal motion may be imparted to theblade within the guard usually provided upon the razor handle. I

i The invention further comprehends among its improvement in blades ofthe character aboveset forth'hav'ing provisions for constra the blade tomove strictly in 'a longitudinal direction, consequently maintaining.uniformity of stroke and obviating lost motion.

vA further object of the invention is to pro- .vide an improved razorblade peculiarly adaptable for use in connection with theeiectro-magnetic oscillating-device described and claimed in LettersPatent,No.'1,813,630, dated July '7, 1931.

2 With the foregoing objects as paramount, the

invention resides in the new article of manufacture exemplified in theannexed drawing and described in the detail description to follow.

Figure 1 represents a side view of an. electric safety razor bladeembodying the invention.

Figure 2 is a similar view showing the oscillating element carried bythe razor and through the medium of'which, combined with certainfeatures of the blade are instrumental in causing the blade tomove'longitudinally in the guard. -Flgm-e3 isaviewsimilartoFigure 2,showing in dotted the movement of the blade.

Figure 4 is a perspective view of the oscillating or blade movingelement.

I similar to Figure 4 but showing an member slightly modified to conformwith the double edged blade.

Figure 6 is a view of the double edged blade, and

through Figure 1. V

' Continuing with a more detailed description of the drawing, it may bestated for the sake of clarity that the type of razor for which theblade described herein is designed is so constructed that oscillatingmotion is imparted to a, driven element, which in turn transmitsoscillatorymotion to the element shown in detail in 'Figure 4' which iscomprised of a sleeve I. havingaslotathereinandapin2,thelowerend "45,Figure 7isatransverse section on lines 7-! 2 Claims. ((11; 30-12) of.which is flattened as at 3. While it forms no part ofthe presentinvention,

a split ring I 4 lies within an'annular groove around the pin 2 for thepurpose of locking the oscillating ele-:

ment to the driven element of the netic oscillating device described inthe as a new identified in the preamble hereof.

electro-magpatent Referring now particularly to the invention, the blade5 constructed of high grade steel is perforated to providethe opening 6,midway between the sides of the blade and spaced from the cutting edge bthereof. The opening or cutaway portion 6 is shown in the present caseas being circular but it is intended, since shape to accommodate shownin Figure 4.

The blade 5 is edges by a rib 7 and in shown in Figures is obvious thatno limitation this opening my be of any the oscillating. elementreinforced along one of its the case of the structures 1 to 3 rib midwayof its ends and extendsinto the opening 6 in the manner shown. When theblade is inserted into the head of device -8 and in order to the razor,

not shown, the slot :1 of the shown in Figure 4 receives the projectionconstrain the blade to move longitudinally as shown in Figure 3 indotted lines, guides 9 are provided. These guides form a part of theguard of the razor and infact, may be elongated rather than in the formof a $5 projection as shown in Figures 2 and'3. These guides do notnecessarily form a part of the present invention and are shown merely toillus- -trate one form of constraining means for the blade when movementthe oscillating element is imparted thereto by shown in Figure 4.

The drawing shows that the projection 8 is nintegral part of the rib 7but itnis obvious that even in the case of the cuta single edged blade.

out or opening 6 may be ofvsuch shape as to define theprojection, thatis to say. the

projection 8 may be apart of'the blade stock. Referring to Figure 6, aslightly modified form of blade is shown although the principle of theinvention remains the same but in order to adapt this particular type ofblade to the razor,

it is necessary to slightly alter the oscillatory device in the mannershown in Figure 5. In

this figure, the cylindrical member-10, instead 1, 7

of having a single slot 11 therein to accommo date the projections 12 inthe aperture 13 of the blade 14 it must be cut away as shown at 15 inorder that the companion projection 12 will not .be interfered withduring oscillation of the said inclusive, the projec- 7 member andhaving an integral projection intermediate its ends and arranged toextend into said opening whereby to be received by the vertical slot insaid oscillating element when said element is-disposed in said opening.

2. In combination with an oscillating element, a safety razor bladeincluding a member having a sharpened edge and a circular openingtherein midway between its ends, a rib embracing the opposite edge ofsaid blade member and having a projection thereon extending into saidopening for engagement by said oscillating member whereby to impartendwise movement to said blade.

MADISON P. McCARTY.

